EP 1324327 A4 20080730 - OPTICAL RECORDING MEDIUM
Title (en)
OPTICAL RECORDING MEDIUM
Title (de)
OPTISCHES AUFZEICHNUNGSMEDIUM
Title (fr)
SUPPORT D'ENREGISTREMENT OPTIQUE
Publication
Application
Priority
- JP 0205802 W 20020611
- JP 2001175981 A 20010611
Abstract (en)
[origin: EP1324327A1] A phase modulation type optical recording medium has at least one layer of recording film 4 and at least one layer of metal film 3 on a substrate 1 having recessed portions formed therein, wherein one or more layers constituting the recording film include organic material that decomposes upon absorption of laser light to change its refractive index, and width of the recessed portions 2 is set to 0.10 mu m SIMILAR 0.21 mu m, thereby providing an optical recording medium of write once type with high recording density capable of high reproduction output. <IMAGE>
IPC 1-7
IPC 8 full level
B32B 3/02 (2006.01); G11B 7/0045 (2006.01); G11B 7/005 (2006.01); G11B 7/007 (2006.01)
CPC (source: EP KR US)
G11B 7/00451 (2013.01 - EP US); G11B 7/24079 (2013.01 - EP US); G11B 7/246 (2013.01 - KR); G11B 7/2472 (2013.01 - EP US); G11B 7/2534 (2013.01 - EP US); G11B 7/259 (2013.01 - EP US); G11B 2007/2571 (2013.01 - EP US); G11B 2007/25713 (2013.01 - EP US); Y10T 428/21 (2015.01 - EP US)
Citation (search report)
- [X] JP 2000242976 A 20000908 - TAIYO YUDEN KK & US 6721265 B1 20040413 - FUJII TORU [JP], et al
- [X] WO 9962061 A2 19991202 - KONINKL PHILIPS ELECTRONICS NV [NL], et al
- [A] EP 0974959 A1 20000126 - TAIYO YUDEN KK [JP]
Designated contracting state (EPC)
AT DE FR GB IT NL
DOCDB simple family (publication)
EP 1324327 A1 20030702; EP 1324327 A4 20080730; EP 1324327 B1 20110126; AT E497240 T1 20110215; CA 2418459 A1 20030204; CN 1251213 C 20060412; CN 1465052 A 20031231; DE 60239043 D1 20110310; JP 4264647 B2 20090520; JP WO2002101735 A1 20040930; KR 20030024837 A 20030326; TW I292910 B 20080121; US 2004008610 A1 20040115; US 6844044 B2 20050118; WO 02101735 A1 20021219
DOCDB simple family (application)
EP 02733475 A 20020611; AT 02733475 T 20020611; CA 2418459 A 20020611; CN 02802320 A 20020611; DE 60239043 T 20020611; JP 0205802 W 20020611; JP 2003504398 A 20020611; KR 20037001783 A 20030207; TW 91112359 A 20020607; US 34450003 A 20030612